89 строки
2.8 KiB
C
89 строки
2.8 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "mpi.h"
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#include "mpi/c/bindings.h"
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#include "opal/class/opal_list.h"
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#include "info/info.h"
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#include <stdlib.h>
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#include <string.h>
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#include "errhandler/errhandler.h"
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#include "communicator/communicator.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Info_get_valuelen = PMPI_Info_get_valuelen
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Info_get_valuelen";
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/**
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* MPI_Info_get_valuelen - Get the length of a value for a given key in an 'M
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*
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* @param info - info object (handle)
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* @param key - null-terminated character string of the index key
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* @param valuelen - length of the value associated with 'key' (integer)
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* @param flag - true (1) if 'key' defined on 'info', false (0) if not
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* (logical)
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*
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* @retval MPI_SUCCESS
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* @retval MPI_ERR_ARG
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* @retval MPI_ERR_INFO
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* @retval MPI_ERR_INFO_KEY
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*
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* The length returned in C and C++ does not include the end-of-string
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* character. If the 'key' is not found on 'info', 'valuelen' is left
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* alone.
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*/
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int MPI_Info_get_valuelen(MPI_Info info, char *key, int *valuelen,
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int *flag)
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{
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int key_length;
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int err;
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/*
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* Simple function. All we need to do is search for the value
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* having the "key" associated with it and return the length
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*/
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (NULL == info || MPI_INFO_NULL == info ||
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ompi_info_is_freed(info)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
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FUNC_NAME);
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}
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key_length = (key) ? strlen (key) : 0;
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if ((NULL == key) || (0 == key_length) ||
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(MPI_MAX_INFO_KEY <= key_length)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO_KEY,
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FUNC_NAME);
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}
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if (NULL == flag || NULL == valuelen) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
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FUNC_NAME);
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}
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}
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err = ompi_info_get_valuelen (info, key, valuelen, flag);
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OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME);
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}
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